Introduction
This manual provides detailed instructions for the operation and maintenance of your SONY ICF-SW55 World Band Receiver. The ICF-SW55 is a high-performance portable receiver designed to capture a wide range of broadcasts, including Shortwave (SW), Mediumwave (MW), Longwave (LW), and FM Stereo transmissions from around the world. It features a Quartz-Lock PLL (Phase Locked Loop) synthesizer for accurate and stable tuning, controlled by a microcomputer.
Product Overview: Controls and Display
Familiarize yourself with the various controls and display elements of your ICF-SW55 receiver. The front panel features a clear LCD display and an array of buttons for tuning, memory functions, and time settings.
Image: SONY ICF-SW55 Front Panel. This image displays the front of the SONY ICF-SW55 World Band Receiver. Key features visible include the large LCD screen in the center, the 'SONY' logo at the top left, and the 'ON/OFF' power button below it. To the right of the screen is a circular 'TUNE/JOG' dial. Below the screen are memory preset buttons (M1-M5) and various function buttons such as 'FM', 'AM', 'TIMER MEMORY', 'ALARM SET', and a numeric keypad for direct frequency input. The overall color is dark gray.
Key Controls:
- POWER ON/OFF Button: Located on the top left, used to turn the receiver on or off.
- TUNE/JOG Dial: A rotary dial on the top right for manual frequency tuning.
- Numeric Keypad (0-9, EXE): For direct frequency input.
- Band Buttons (FM, AM): To select the desired frequency band.
- Memory Buttons (M1-M5, CHECK, ENTER, ERASE): For storing and recalling favorite stations.
- Time/Clock Buttons (WORLD TIME, UTC/LOCAL, TIME OFF SET, SUMMER ON/OFF): For setting and displaying various time zones.
- Timer/Alarm Buttons (TIMER MEMORY, TIMER SET, ALARM SET): For setting sleep timers and alarms.
- KEY PROTECT Switch: To prevent accidental operation.
- STOP/SCAN Buttons: For scanning frequencies.
Setup
1. Power Supply
The ICF-SW55 can be powered by four AA batteries or the supplied AC adapter (AC-E601).
- Battery Installation: Open the battery compartment cover on the back of the unit. Insert four AA batteries, ensuring correct polarity (+/-). Close the cover securely.
- AC Adapter Connection: Connect the AC adapter to the DC IN 6V jack on the side of the receiver and plug it into a standard wall outlet. Using the AC adapter will conserve battery life.
2. Antenna Setup
- FM/SW: Extend the rod antenna fully for optimal reception. Adjust its angle and direction for the best signal.
- MW/LW: The receiver uses a built-in ferrite bar antenna. Rotate the unit itself to find the best reception direction for these bands.
- External Antenna: For enhanced LW/MW/SW reception, an external antenna can be connected to the dedicated mini jack terminal.
Operating Instructions
1. Powering On/Off
Press the ON/OFF button to turn the receiver on or off. The display will illuminate when the unit is on.
2. Band Selection
Press the FM or AM button to select the desired frequency band. For Shortwave (SW) and Longwave (LW), these are typically accessed through the AM band and then tuned to the specific frequency ranges.
3. Tuning Methods
The ICF-SW55 offers four primary tuning methods:
- Manual Tuning (Jog Dial): Rotate the TUNE/JOG dial to manually adjust the frequency.
- Direct Tuning: Use the numeric keypad to enter the desired frequency directly, then press EXE.
- Preset Tuning: Press one of the M1-M5 buttons to recall a stored station.
- Scan Tuning: Use the STOP/SCAN buttons to automatically scan for active stations within the current band.
4. Storing and Recalling Memory Stations
The receiver can store up to 125 stations in memory.
- Tune to the desired station.
- Press the ENTER button (under MEMORY).
- Select a memory location (e.g., M1-M5 or a numeric keypad entry for other memory banks).
- Press ENTER again to confirm.
- To recall, simply press the corresponding memory button or enter the memory location and press CHECK.
5. World Time and Clock Functions
The ICF-SW55 features a world time clock and the ability to display local or UTC time.
- Press WORLD TIME to view different time zones.
- Press UTC/LOCAL to switch between Coordinated Universal Time (UTC) and your local time.
- Use TIME OFF SET and SUMMER ON/OFF to adjust for time differences and daylight saving.
6. Alarm and Timer Functions
Set alarms to wake up to your favorite station or use the sleep timer function.
- Alarm Set: Press ALARM SET and follow the on-screen prompts to set the alarm time and desired station.
- Timer Set: Use TIMER SET to configure automatic power-on/off times.
- Sleep Timer: The SLEEP button (near ON/OFF) activates a sleep timer, allowing the radio to play for a set duration before automatically turning off.
Maintenance
Cleaning
Wipe the exterior of the receiver with a soft, dry cloth. For stubborn stains, use a cloth lightly dampened with a mild detergent solution, then wipe dry. Do not use abrasive cleaners, solvents, or alcohol, as these can damage the finish.
Storage
When not in use for extended periods, remove the batteries to prevent leakage and store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
If you experience issues with your ICF-SW55, refer to the following common problems and solutions:
| Problem | Solution |
|---|---|
| No power | Check battery installation and charge level. Ensure AC adapter is securely connected if using mains power. |
| Poor reception / Static | Extend the rod antenna fully (FM/SW). Rotate the unit for MW/LW. Try an external antenna. Move away from electronic devices that may cause interference. |
| Buttons unresponsive | Check if the KEY PROTECT switch is engaged. Turn it off to enable button functions. |
| Display is blank or dim | Check power supply. If using batteries, they may be low. |
Specifications
| Circuit Method | FM: Single conversion superheterodyne AM (LW/MW/SW): Dual conversion superheterodyne |
| Receiving Frequency Range | AM: 150 - 29,999 kHz FM: 76.0 - 90.0 MHz TV (Channels 1-3): 90 - 108 MHz |
| Intermediate Frequency | LW/MW/SW: 55.545 MHz (1st), 455 kHz (2nd) FM: 10.7 MHz |
| Antenna System | Rod antenna (FM/SW) Built-in ferrite bar antenna (MW/LW) External antenna terminal (mini jack) for LW/MW/SW |
| Speaker | Approx. 7.7 cm diameter, 8 Ω, 1 unit |
| Practical Maximum Output | 400 mW (10% distortion, EIAJ DC) |
| Output Terminals | Recording terminal (mini jack) x1: Output level 245 mV (-10 dB), Output impedance less than 10 kΩ Earphone terminal (stereo mini jack) x1 |
| Power Requirements | DC 6V AA batteries x4 AC adapter (AC-E601) supplied |
| Dimensions (W x H x D) | 194 x 127 x 39 mm (EIAJ) |
| Weight | Approx. 900 g (including dry batteries) |
| Color | Black |
| Connectivity Technology | AUX |
| Tuner Technology | AM, FM, SW |
| Supported Radio Bands | AM/FM |
| Audio Output Mode | Stereo |
| Display Type | VFD (Vacuum Fluorescent Display) |
Safety Information
Please read and observe the following safety precautions to ensure safe operation and prevent damage to your receiver:
- Do not expose the unit to rain or moisture to prevent fire or electric shock.
- Do not open the casing. Refer servicing to qualified personnel only.
- Avoid placing the unit in direct sunlight, near heat sources, or in extremely dusty or humid environments.
- Use only the specified power supply (AA batteries or AC-E601 adapter).
- Keep batteries out of reach of children. If swallowed, seek medical attention immediately.
- Dispose of used batteries according to local regulations.
Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact SONY customer service. Keep your purchase receipt as proof of purchase for warranty claims.
For further inquiries regarding product specifications not covered in this manual, please contact the manufacturer directly.